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Subject[PATCH -next] hwlat: depends on RING_BUFFER (build fix)
From: Randy Dunlap <randy.dunlap@oracle.com>

hwlat_detector build fails because it uses ring_buffer interfaces
without depending on RING_BUFFER.

hwlat_detector.c:(.text+0x8d906): undefined reference to `ring_buffer_reset'
hwlat_detector.c:(.text+0x8d98c): undefined reference to `ring_buffer_free'
hwlat_detector.c:(.text+0x8dd16): undefined reference to `__ring_buffer_alloc'
hwlat_detector.c:(.text+0x8df15): undefined reference to `ring_buffer_free'
hwlat_detector.c:(.text+0x8e100): undefined reference to `ring_buffer_write'
hwlat_detector.c:(.text+0x8e239): undefined reference to `ring_buffer_consume'
hwlat_detector.c:(.text+0x8e2ac): undefined reference to `ring_buffer_event_data'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jon Masters <jcm@jonmasters.org>
---
drivers/misc/Kconfig | 1 +
1 file changed, 1 insertion(+)

--- linux-next-20090622.orig/drivers/misc/Kconfig
+++ linux-next-20090622/drivers/misc/Kconfig
@@ -79,6 +79,7 @@ config IBM_ASM
config HWLAT_DETECTOR
tristate "Testing module to detect hardware-induced latencies"
depends on DEBUG_FS
+ depends on RING_BUFFER
default m
---help---
A simple hardware latency detector. Use this module to detect


--
~Randy
LPC 2009, Sept. 23-25, Portland, Oregon
http://linuxplumbersconf.org/2009/


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